Developer Reference

  • 2020.2
  • 07/15/2020
  • Public Content
Contents

mkl_calloc

Allocates and initializes an aligned memory buffer.

Syntax

a_ptr
=
mkl_calloc
(
num
,
size
,
alignment
)
Fortran Include Files/Modules
  • Include file:
    mkl.fi
  • Module (compiled):
    mkl_service.mod
  • Module (source):
    mkl_service.f90
Input Parameters
Name
Type
Description
num
INTEGER*4
for 32-bit systems
INTEGER*8
for 64-bit systems
The number of elements in the buffer to be allocated.
size
INTEGER*4
for 32-bit systems
INTEGER*8
for 64-bit systems
The size of the element.
alignment
INTEGER*4
Alignment of the buffer.
Description
The function allocates a
num
*
size
-byte buffer, aligned on the
alignment
-byte boundary, and initializes the buffer with zeros.
If
alignment
is not a power of 2, the 64-byte alignment is used.
Return Values
Name
Type
Description
a_ptr
POINTER
Pointer to the allocated buffer if
size
1,
NULL
if
size
< 1.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804